Answer:
go through a metamorphosis
Explanation:
METAMORPHOSIS is the change in the form and often habits of an animal after the embryonic stage during normal development.
For Example: the transformation of a caterpillar into a butterfly, OR a tadpole into a frog.
Note that the other options given are WRONG because they are characteristics or features of either of them, NOT both.
Number b I think is right
Why they go into the sea first, and wjat helps their swimming abilities
If the number of observations is even, then the median is defined as the average of the two middle observations<span>. Median is a measure of central tendency, it depicts the middle value in a given set of numbers. To find the median, the data should be arranged in order from least to greatest. If there is an even number of items in the data set, then the median is found by taking the mean or average of the middlemost numbers. If there is an odd number of results or items, the median is the middle number.</span>
A molted external skeleton.
